TWI823887B - Induction heating assembly for a vapour generating device - Google Patents

Abstract

There is provided an induction heating assembly for a vapour generating device. The heating assembly comprises an induction heating device and an electronic component having material able to act as a first susceptor, wherein the induction heating device is arranged to heat, in use, a second susceptor for a first period, and the electronic component is arranged to be activated for a second period, and wherein the first period and the second period are non-concurrent. This achieves reduced interference in the functionality of the electronic component.

Description

Induction heating assembly for a steam generating device

The present invention relates to an induction heating assembly for a steam generating device.

In recent years, devices that heat rather than burn a substance to produce vapor for inhalation have become increasingly popular with consumers.

Such devices may use one of many different methods to provide heat to the substance. One such method is simply to provide a heating element, supply electricity to the heating element to heat the element, which in turn heats the substance to produce vapor.

One way to achieve this steam generation is to provide a steam generating device using an induction heating method. In this device, an induction coil (hereinafter also referred to as an inductor and an induction heating device) has the device and a base has a vapor generating substance. When a user activates the device, which in turn generates an electromagnetic (EM) field, power is provided to the sensor. The base couples to the field and generates heat that is transferred to the substance and produces vapor as the substance is heated.

The use of induction heating to generate steam can provide controlled heating and therefore controlled steam production. In practice, however, this approach can result in the vapor generating material inadvertently generating unsuitable temperatures. This wastes power, driving up operating costs and increasing the risk of component damage, or inconveniences users who expect a simple and reliable device by preventing the vapor-generating substance from being used effectively.

This problem has previously been addressed by monitoring the temperature in a device. Proper temperature monitoring and/or control is also important to prevent overheating or combustion of materials used to generate vapor. However, we have found that monitoring temperature is unreliable and cannot represent the actual temperature generated further reducing the reliability of this device.

The present invention attempts to alleviate at least some of the above problems.

According to a first aspect, an induction heating assembly for a steam generating device is provided. The heating assembly includes: an induction heating device and an electronic component having a material capable of acting as a first base, wherein the induction heating assembly The heating device is configured to heat a second base in use for a first period of time, and the electronic component is configured to activate during a second period of time, and wherein the first period of time and the second period of time are non-simultaneous.

We have discovered that operating the electronic component and the induction heating device simultaneously can cause the electronic component to operate improperly. This is attributed to the induction heating device causing interference to the electronic component. In other words, the electronic component is susceptible to excitation interference caused by operating the induction heating device during use of the induction heating device. Therefore, by operating the induction heating device and the electronic component during non-simultaneous periods, the induction heating device and the electronic component can operate as desired without causing an adverse effect on each other's operation.

The electronic component may be: an LED indicator; a sensor configured to detect the presence of a consumable (such as a cartridge or an inductively heated body) in a heating chamber, such as a photoelectric or light sensor device; a battery monitor; or a sensor configured to detect the age of a consumable product. Typically, the electronic component is a temperature sensor configured to, in use, monitor a temperature associated with heat generated from the second base for the second period of time.

We have discovered that when the temperature sensor is used to monitor temperature, it is possible to reduce the error in a signal output by the temperature sensor by operating the temperature sensor at a time different from the time the inductive heating device is operated. The amount of noise due to the EM field generated by the induction heating device. This allows for more accurate and precise monitoring of the temperature so that the monitored temperature is more representative of the actual temperature produced. This results in increased reliability and safety of the device, as the temperature resulting from the heating can be measured more reliably allowing any inappropriate temperatures to be addressed more easily and with greater certainty.

Of course, the inductive heating device and the electronic component/temperature sensor may be separate or separate components from each other.

The first base and/or the second base may include (but are not limited to) one or more of aluminum, iron, nickel, stainless steel, and alloys thereof (eg, nickel-chromium). Since an electromagnetic field is applied near the base, the base may generate heat due to eddy currents and hysteresis losses (which result in the conversion of energy from electromagnetic energy to thermal energy).

Although the first time period and the second time period do not overlap, they may be configured to occur in any feasible manner, such as with a gap between the first time period and the second time period. Typically, the first time period and the second time period are configured to be consecutive.

We intend the term "continuous" to mean that one period of time substantially follows the next, ideally without any gap or overlap between the first period of time and the second period of time. This allows the monitored temperature to be measured before or during heating by avoiding fluctuations in ambient temperature around the induction heating assembly or by avoiding cooling after completion of the first period before the start of the second period or after completion of the second period. A temperature change to achieve the temperature. Specifically, we have determined that the noise effect caused by the induction device heating the base (i.e., the second base) during the first period of time dissipates very quickly once heating is stopped, such that, ideally, Any gap or overlap between the first time period and the second time period should be as small as possible. However, actual embodiments may include a small gap or overlap between the time periods (e.g., up to approximately ten percent (10%) of the duration of either or both the first time period and the second time period. ) or up to 10 milliseconds (ms)) and still be considered continuous (for the purposes of this invention). Optimally, however, any spacing or overlap between the time periods is less than 1% of the duration of either or both of the first time period and the second time period or less than 1 ms.

Each time period may occur only once during any time a user uses the induction heating assembly. Typically, however, the first period of time is configured to repeat at least once and/or the second period of time is configured to repeat at least once. This allows multiple cycles of heating and/or temperature monitoring. This provides an increased accuracy in using the temperature in the inductive heating assembly when repeating the second period and smaller fluctuations in the temperature in the inductive heating assembly when repeating the first period.

Preferably, each of the first time period and the second time period are configured to repeat at least once and the first time period and the second time period are configured to occur alternately. This makes the monitored temperature more representative of the temperature achieved during the first period and further reduces fluctuations caused by heating being provided and not being provided.

The cycle of one of the first time period and the second time period may last for any suitable time period. Typically, the time from the beginning of the first period or the second period to the end of the other period is configured to be approximately 0.05 seconds (s) to 0.15 seconds. This reduces the user's use of the induction heating assembly by keeping the length of a single cycle shorter than the length of time a user is likely to use the induction heating assembly (which is expected to be about one or more seconds at any time). inconvenient. Furthermore, we have found that this period of time maintains a response speed sufficient for temperature monitoring and at the same time gives the induction heating device enough time to effectively increase the temperature. This is because a time shorter than 0.05 s will have a negative impact on the performance of raising the temperature, but a time longer than 0.15 s will have a negative impact on the response speed that can be achieved by adapting heating in response to temperature monitoring.

The first period may be configured to be longer than the second period, or the first period may be configured to be the same length as the second period, or the first period may be configured to be shorter than the second period. The first period being longer than the second period is advantageous because it allows more time for heating to allow a higher temperature to be achieved or allows more time for heat diffusion to achieve a more uniform temperature throughout the heated volume. This also reduces heat loss during the second time period. It is advantageous that the first period and the second period are the same length because it simplifies operation of the induction heating assembly. It is advantageous that the first period is shorter than the second period because it allows more time to monitor the temperature than the amount of time spent heating.

The amount of heat provided by the inductive heating device can be determined independently of the temperature monitored by the temperature sensor. However, the inductive heating device is typically configured to adjust the heat provided to the base (ie, the second base) based on the temperature monitored by the temperature sensor. This allows the monitoring performed by the temperature sensor to be used as feedback thereby allowing the heating to be adjusted to account for fluctuations in ambient or local temperature or different conditions in the environment in which the inductive heating assembly is located.

The inductive heating assembly may further include a controller configured to control the inductive heating device and the temperature sensor in use. The controller may be configured to control the inductive heating device in use based on the temperature monitored by the temperature sensor. Preferably, the controller is configured to control the inductive heating device by being configured to adjust the power supplied to the inductive heating device in use.

The controller may record and/or store and/or process the monitored temperature. Typically, the controller is configured to average the temperature monitored by the temperature sensor over a third period of time to allow detection of noise in the temperature monitored by the temperature sensor. By allowing noise detection, additional noise can be removed from the signal generated by the temperature sensor when monitoring temperature. This will then allow for increased accuracy and precision of the monitored temperature. Preferably, the controller may be further configured to detect noise in the temperature monitored by the temperature sensor based on the averaged temperatures monitored during the third period of time and based on the detected noise To apply a filter to the temperature monitored by the temperature sensor to reduce noise in the monitored temperature.

Power can be supplied to the components of the induction heating assembly in any suitable manner. Typically, the inductive heating assembly further includes a power source configured to provide power to the inductive heating device and the temperature sensor in use. This allows the induction heating assembly to operate without an external power supply.

The induction heating device may be provided in any form suitable for providing induction heating. Typically, the induction heating device is an induction heating coil. This allows the generation of an EM field with a regular and predictable shape allowing more predictable heat to be provided in a more controllable manner.

The temperature sensor can be positioned at an axial center of the induction coil or at a position outside the induction coil. However, the temperature sensor is usually positioned between an axial end of the induction coil and a center of the induction coil, preferably on a central longitudinal axis of the induction coil. Preferably, the temperature sensor can be positioned at an axial end of the induction coil. We have found that locating the temperature sensor in this location provides an appropriate balance between the ability to accurately measure temperature and reducing noise in the signal generated by the temperature sensor. Moving the temperature sensor beyond one axial end of the induction coil reduces noise in the signal generated by the temperature sensor, but reduces the accuracy of the temperature measurement because the temperature sensor is farther away from the source of heat. Location. On the other hand, locating the temperature sensor at the axial center of the induction coil increases the amount of noise, but the measured temperature is more likely to represent a temperature caused by heating.

The assembly may be configured to operate, in use, with a fluctuating electromagnetic field having a magnetic flux density between about 0.5 T and about 2.0 T at a point of highest concentration.

The power supply and circuitry can be configured to operate at a high frequency. Preferably, the power supply and circuitry may be configured to operate at a frequency between approximately 80 kHz and 500 kHz, preferably between approximately 150 kHz and approximately 250 kHz, and more preferably approximately 200 kHz.

Although the induction coil may comprise any suitable material, the induction coil typically may comprise a Litz wire or a Litz cable.

According to a second aspect, a steam generating device is provided, which includes: an induction heating assembly according to any one of the foregoing technical solutions; a heating chamber configured to receive an evaporable substance and an induction heating base. a body of the seat; an air inlet configured to provide air to the heating chamber; and an air outlet communicating with the heating chamber. The inductively heated base may be intended to be the "second base" referred to above.

The vaporizable material can be any type of solid or semi-solid material. Example types of vapor-generating solids include powders, granules, pellets, chips, strands, porous materials, or sheets. The substance may include plant-derived material, and in particular the substance may include tobacco.

Preferably, the vaporizable substance may comprise an aerosol former. Examples of aerosol formers include polyols and mixtures thereof, such as glycerol or propylene glycol. Typically, the vaporizable material may comprise an aerosol former dry weight content of between about 5% and about 50%. Preferably, the vaporizable material may comprise about 15% by dry weight of the aerosol former.

Furthermore, the vaporizable substance can be the aerosol former itself. In this case, the evaporable substance may be a liquid. Furthermore, in this case, the body may have a liquid retaining substance (eg a bundle of fibers, a porous material such as ceramic, etc.) which retains the liquid evaporated by an evaporator such as a heater and allows the liquid retaining substance to be ejected Forming and releasing/emitting a vapor towards the air outlet for inhalation by a user.

Upon heating, the vaporizable material can release volatile compounds. Such volatile compounds may include nicotine or flavoring compounds, such as tobacco flavorants.

The body may be a container which, in use, contains a vaporizable substance within a breathable shell. The breathable material can be an electrically insulating and non-magnetic material. The material may have a high air permeability to allow air to flow through the high temperature resistant material. Examples of suitable breathable materials include cellulose, fiber, paper, cotton and silk. The breathable material can also act as a filter. Alternatively, the body may be an evaporable substance wrapped in paper. Alternatively, the body may be a vaporizable substance contained within a material that is impermeable to air but includes suitable perforations or openings to allow air flow. Alternatively, the body may be the evaporable substance itself. The body can be substantially formed into the shape of a rod.

According to a third aspect, a method for monitoring temperature in a steam generating device is provided. The method includes: using an induction heating device to inductively heat a body including an evaporable substance and an inductively heated base; monitoring the The temperature of the body, in which heating and monitoring are not performed at the same time. The inductively heated base may be intended to be the "second base" referred to above.

We now describe an example of a steam generating device that includes a description of an example induction heating assembly and an example inductively heated cartridge. An example method of monitoring temperature in a steam generating device is also described.

Referring now to FIGS. 1 and 2 , an exemplary steam generating device generally shown in FIG. 1 is shown in an assembled configuration and FIG. 2 is shown in an unassembled configuration.

The exemplary steam generating device 1 is a handheld device (we intend this to mean a device that a user can hold in one hand and independently support) having an induction heating assembly 10, an inductive heating cartridge 20 and a suction Mouth 30. When the cartridge is heated, steam is released from the cartridge. Therefore, steam is generated by heating the inductively heated cartridge using an inductive heating assembly. The vapor can then be inhaled by a user at the mouthpiece.

In this example, a user inhales vapor by drawing air into the device 1 while heating the cartridge, through or around the inductively heated cartridge 20 and out of the nozzle 30 . This is accomplished by positioning the cartridge in a heating chamber 12 defined by a portion of the induction heating assembly 10 when assembling the device and aligning the chamber with an air inlet 14 formed in the assembly and an air outlet in the nozzle 32 gas connections are achieved. This allows air to be drawn through the device by applying negative pressure (which is typically created by a user drawing air from the air outlet).

The cartridge 20 is a body including an evaporable substance 22 and an inductively heated base 24 (this base may be intended to be the "second base" referred to above). In this example, the vaporizable substance includes one or more of tobacco, humectants, glycerin, and propylene glycol. The base is composed of a plurality of conductive plates. In this example, the cartridge also has a layer or membrane 26 for containing the evaporable substance and the base, wherein the layer or membrane is breathable. In other examples, no membrane is present.

As mentioned above, the induction heating assembly 10 is used in the heating cartridge 20 . The assembly includes an induction heating device in the form of an induction coil 16 and a power source 18 . The power source and induction coil are electrically connected so that power can be selectively transmitted between the two components.

In this example, the induction coil 16 is substantially cylindrical, such that the shape of the induction heating assembly 10 is also substantially cylindrical. The heating chamber 12 is defined radially within the induction coil, with a base located at an axial end of the induction coil and side walls surrounding a radially inner side of the induction coil. The heating chamber is open at one axial end of the induction coil opposite the substrate. When the steam generating device 1 is assembled, the opening is covered by the suction nozzle 30, wherein an opening leading to the air outlet 32 is positioned at the opening of the heating chamber. In the example shown in the figures, the air inlet 14 has an opening at the base of the heating chamber into the heating chamber.

A temperature sensor 11 is also positioned at the base of the heating chamber 12 . Therefore, the temperature sensor is positioned within the heating chamber at the axial end of the induction coil 16 which is identical to the base of the heating chamber. This means that when a cartridge 20 is positioned in the heating chamber and the steam generating device 1 is assembled (in other words, the steam generating device is in use or ready for use), the cartridge deforms around the temperature sensor. This is because, in this example, the temperature sensor does not penetrate the membrane 26 of the cartridge due to its size and shape.

The temperature sensor 11 is electrically connected to a controller 13 located in the induction heating assembly 10 . The controller is also electrically connected to the induction coil 16 and the power source 18 and is adapted in use to control the operation of the induction coil and the temperature sensor by determining when power is supplied from the power source to each of the induction coil and the temperature sensor. .

As mentioned above, the cartridge 20 is heated to generate steam. This is achieved by changing the DC current supplied to the induction coil 16 by the free power source 18 to an AC current. Current flows through the induction coil to cause a controlled EM field to be generated in a region proximate the coil. The generated EM field provides a source for an external base (in this case the base plate of the cassette) to absorb the EM energy and convert it into thermal energy, thereby achieving inductive heating.

In more detail, an EM field is caused by providing power to the induction coil 16 to cause a current to pass through the induction coil. As mentioned above, the current supplied to the induction coil is an alternating current (AC) current. This causes heat to be generated within the cassette because when the cassette is positioned in the heating chamber 12 it is intended that the base plate be configured (substantially) parallel to the radius of the induction coil 16 (as shown in the figure) or at least have a The length component of the coil's radius. Therefore, when AC current is supplied to the induction coil and the cassette is positioned in the heating chamber, the positioning of the base plates causes eddy currents to be induced in each plate due to coupling of the EM fields generated by the induction coils to the respective base plates. This causes heat to be generated by induction in each plate.

The plates of the cartridge 20 are in thermal communication with the evaporable material 22, in this example, by direct or indirect contact between each base plate and the evaporable material. This means that when the base 24 is inductively heated by the induction coil 16 of the induction heating assembly 10, heat is transferred from the base 24 to the evaporable substance 22 to heat the evaporable substance 22 to generate a steam.

When the temperature sensor 11 is in use, it monitors temperature by measuring the temperature at its surface. Each temperature measurement is sent to the controller 13 in the form of an electrical signal.

When the steam generating device 1 is in use, induction heating provided by the induction heating assembly 10 and temperature monitoring provided by the temperature sensor 11 are implemented according to an exemplary method.

According to an exemplary method, when the steam generating device 1 is in use, induction heating is provided during a first period and temperature monitoring is performed during a second period. The first period and the second period are not simultaneous. Instead, the first period and the second period occur at different times, with a heating phase lasting in a repeating cycle, the second period following the first period and the first period following the second period. During this phase, the temperature needs to be monitored to provide controlled heating of the vaporizable material 22. In various examples, a heating phase may only last for the duration of a single blow (i.e., the user takes one breath on the mouthpiece), or in alternative examples, it may last for multiple blows and may include a The heating stage(s) and the holding stage(s) may include transitions between different target temperatures or other similar transitions.

Each cycle starting from one time period (the first time period or the second time period) to the end of the other time period (the second time period or the first time period) has a duration between about 0.05 seconds and about 0.15 seconds. In various instances, the second time period has the same length as the first time period, is shorter than the first time period, or is longer than the first time period.

In another example, in addition to monitoring the temperature, the controller also adjusts the power provided to the induction coil 16 based on the temperature monitored by the temperature sensor 11 . This applies, for example, when the cartridge 20 is intended to be heated to a predetermined temperature. Then, the controller increases or decreases the power supplied to the induction coil based on the difference between the predetermined temperature and the monitored temperature to minimize the difference.

In a similar example, in a new phase of use, heating takes place within a predetermined period after starting the device 1 . Next, the temperature sensor 11 is used to monitor the temperature. The controller checks the monitored temperature against a look-up table and adjusts the heating profile (and therefore the power supplied to the induction coil 16 to adjust the heat provided) to compensate for ambient temperature, container conditions or to stop a phase of use such as if (e.g. ) detects a predetermined amount of previous use of a container from a predetermined rate of temperature change). This allows for a reduction in power since the maximum power available will normally be applied at start-up. However, this poses the greatest risk of overheating or burning, so monitoring this situation increases safety and reduces the possibility of damaging components of the device.

Additionally, in another example, the controller 13 averages a series of temperature measurements provided by the temperature sensor 11 , where the series of temperature measurements are taken during a third time period that is independent of the first time period and the second time period. . The average temperature is then used for noise detection, from which the noise can be filtered out (ie, removed) from the electrical signal based on the noise from the average temperature detection and/or unreliable or anomalous temperature quantities can be identified and discarded or ignored. Test.

Figure 3 shows another example steam generating device 1. In this further example, the steam generating device has most of the same features as the steam generating device shown in FIGS. 1 and 2 . Thus, the exemplary steam generating device 1 is a handheld device having an inductive heating assembly 10, an inductively heated cartridge including a vaporizable substance 22, an inductively heated base 24 and in this example a membrane. 26) and a suction nozzle 30.

The steam generating device 1 of this example operates in the same manner as described above with respect to FIGS. 1 and 2 . Therefore, during use, air is sucked into the heating chamber of the receiving box through the air inlet 14 and discharged to the user through the air outlet 32 in the suction nozzle 30 .

As mentioned above, the induction heating assembly 10 is used to heat a cartridge. The assembly includes an induction heating device in the form of an induction coil 16 and a power source 18 . The power source and induction coil are electrically connected so that power can be selectively transmitted between the two components.

In the example shown in Figure 3, the temperature sensor is not shown. However, a temperature sensor may be present and operate as described with respect to the examples shown in FIGS. 1 and 2 .

In the example shown in Figure 3, an electronic component 50 is present. This electronic component is an indicator positioned in the heating chamber of the heating assembly against one of the walls of the heating chamber, with the nozzle 30 intersecting the heating chamber. This electronic component is therefore positioned close to one end of the induction coil 16 of the suction nozzle. This means that when the induction coil generates an EM field, the electronic components are positioned within the EM field.

In some examples, electronics assembly 50 is configured to monitor remaining battery power. In other examples, the electronic assembly is configured to monitor the remaining life of the cartridge, such as by monitoring the number of remaining draws of vapor available from the device, which corresponds to the remaining volume of vaporizable material. In a further example, the electronic assembly is configured to detect the presence of a cassette in the heating chamber.

Electronic component 50 contains a material capable of acting as a base when exposed to an EM field. We have discovered that this causes the electronic components to operate in a manner other than the manner intended when the induction coil 16 operates due to exposure to the EM field generated by the induction coil 16 . This is due to EM fields causing disturbances in materials that can serve as a base for electronic components. It should be noted that in this context, when we assume that an electronic component contains a material that can act as a base (i.e., the "first base"), it does not necessarily imply that this material will generate a large amount of heat, but only that it will To some extent, they are affected by electromagnetic fields generated by induction coils, which can cause electronic components to behave in a modified (and generally poor) way when exposed to electromagnetic fields due to their susceptibility to electromagnetic fields. Thus, when the steam generating device 1 shown in Figure 3 is in use, the electronic components and the induction coil are operated during non-simultaneous periods. This means that the electronic component will only function when no EM fields are generated (thereby meaning no interference is generated).

1‧‧‧Steam generating device 10‧‧‧Induction heating assembly 11‧‧‧Temperature sensor/electronic components 12‧‧‧Heating chamber 13‧‧‧Controller 14‧‧‧Air inlet 16‧‧‧Induction coil/induction heating device 18‧‧‧Power supply 20‧‧‧Induction heating box/body 22‧‧‧Evaporable substances 24‧‧‧Induction heating base 26‧‧‧layers/film 30‧‧‧Nozzle 32‧‧‧Air outlet 50‧‧‧Electronic components

An example of an induction heating assembly will be described in detail below with reference to the accompanying drawings, in which: Figure 1 shows a schematic diagram of an example steam generating device; Figure 2 shows an exploded view of a steam generating device according to the example shown in Figure 1; and Figure 3 shows a schematic diagram of another exemplary steam generating device.

1‧‧‧Steam generating device

10‧‧‧Induction heating assembly

11‧‧‧Temperature sensor/electronic components

13‧‧‧Controller

14‧‧‧Air inlet

16‧‧‧Induction coil/induction heating device

18‧‧‧Power supply

22‧‧‧Evaporable substances

24‧‧‧Induction heating base

26‧‧‧layers/film

30‧‧‧Nozzle

32‧‧‧Air outlet

Claims (15)

An induction heating assembly (10) for a steam generating device, the heating assembly includes: an induction heating device (16) and an electronic component (11) including a material capable of acting as a first base, wherein the The induction heating device is configured to heat a second base in use for a first period of time, and the electronic component is configured to be activated during a second period of time, wherein the first period of time and the second period of time are non-simultaneous; and Wherein, the electronic component will be activated only when the induction heating device is not activated. The assembly (10) of claim 1, wherein the first time period and the second time period are configured to be continuous. The assembly (10) of claim 1 or claim 2, wherein the first time period is configured to repeat at least once and/or the second time period is configured to repeat at least once. The assembly of claim 3 (10), wherein each of the first time period and the second time period are configured to repeat at least once and the first time period and the second time period are configured to alternate. The assembly (10) of claim 1 or claim 2, wherein the time from the beginning of one of the first period or the second period to the end of the other period is configured to be about 0.05 seconds (s) to about 0.15 seconds . The assembly (10) of claim 1 or claim 2, wherein the electronic component is a temperature sensor configured to monitor, in use, associated with heat generated from the second base One temperature reaches the second period. The assembly (10) of claim 6, wherein the inductive heating device (16) is configured to adjust the heat provided to the second base based on the temperature monitored by the temperature sensor (11). The assembly (10) of claim 6, further comprising a controller (13) configured to control the inductive heating device (16) and the temperature sensor (11) in use. The assembly (10) of claim 8, wherein the controller (13) is configured to control the inductive heating device (16) in use based on the temperature monitored by the temperature sensor (11). The assembly (10) of claim 9, wherein the controller (13) is configured to control the induction heating device (16) by being configured to adjust the power supplied to the induction heating device in use. The assembly (10) of claim 8, wherein the controller (13) is configured to average the temperature monitored by the temperature sensor (11) over a third period of time to allow detection of the temperature detected by the temperature sensor. The noise in the temperature monitored by the detector. The assembly (10) of claim 11, wherein the controller (13) is further configured to detect the temperature monitored by the temperature sensor (11) based on an average temperature monitored during the third period of time and based on the detected noise, a filtering is applied to the temperature monitored by the temperature sensor to reduce the noise in the monitored temperature. The assembly (10) of claim 1 or claim 2, further comprising a power supply (18) configured to provide power to the induction heating device (16) and the electronic component (11) in use. A steam generating device (1), comprising: an induction heating assembly (10) according to any one of claims 1 to 13; a heating chamber (12) configured to receive an evaporable substance (22) and a body (20) of an inductively heated base (24); an air inlet (14) configured to provide air to the heating chamber; and an air outlet (32) connected to the heating chamber Connected. A method of monitoring temperature in a steam generating device (1), the method comprising: using an induction heating device to inductively heat a body (20) including an evaporable substance (22) and an inductively heated base (24) ); monitor the temperature of the body, in which heating and monitoring can only be performed non-simultaneously; and the step of monitoring the temperature of the body will only be performed when the induction heating device is not activated.